Shoe sole cementing machine



Sept. 13, 1932. w. F. GREEN I 1,377,300

SHOE SOLE CEMENTING MACHINE Fi led Sept. 22, 1930 Wm Twee M M 7 W 10, of the sole of the shoe.

Patented Sept. 13, 1932 UNITED STATES WILLIAM F. GREEN, on. sizieui isspea i j SHOE SOLE omvrnn rnve 'MACHIJQ'E] Application filed September 22,11 '9sf. Serial n6. 483,519] '7 i Another object of this invention is to provide an adjustable clamping device which.

may be used with standard lasts of various sizes, so that the same clamping device is equally effective on shoes of large or small size.

A still further object of this invention is to provide a machine of great simplicity, low cost'and extreme durability.

Other and further objects and advantages of this invention will be disclosed in the specification, claim and drawing, in which: Fig. 1 is a side elevation partly in section, showing a pair of shoes in position.

ig. 2 is an end elevation of my invention.

Fig. 3 is an end view partly in section of a sand box.

Fig. 4 is a perspective view of the clamping device. a

Fig. 5 is a longitudinal sectional view of the clamp shown in Fig. 4:.

In the manufacture of shoes it has recently been found desirable to use cement for attaching the soles on certain classes of shoes instead of using tacks or stitching. Although y it has been found that the cement successfully holds the soles in place when properly applied, the difliculty has been to hold the sole in firm contact at all points.

The product of a days manufacture in a modern shoe factory includes a wide variety of styles and sizes and as the styles change rapidly it would be impractical to provide a wooden or metal form to hold the soles firmly in place while being cemented, since the expense involved would make the use of the press prohibitive. A large number of attempts have been made to meet this peculiar condition with more or less success and failure.

i The essential feature required; is that the foundation 'orrest upon: which the-shoe is placed must possess a large degree ofmobility and resiliency as welltas firmness. j The use of water has been 'tried but its fluidity, althoughi jnon-compressible,has failed to furnish a sufficiently firm foundation as has, i

also, been the pressed air; k r v objection to the use offcom- 1T0 overcome the and conditions aboveoutlinedthe present'inventionprovides I anenclosure -1 covered with a suitable resilient cover 2 which may be made of rubber, I

fabric;or other?suitablematerial. A quantity ofdry sand or'otherfinelycom minuted particles adapted to conform with the contour. :of :a body when pressed. against the :cover is tightly enclosed;withinlthe-en V closure 1 :Itis evident ithatif pressura-is in contact With the sand; it will sooner or I exerted: on anyj partieular; part of: the cover,

laterpack and become more stable and 1 less yielding; Therefore, a. suitable agitator 3 is provided whichmaygconsist' off'a .worm l', or

aseriesof fan bladesin any desired contour. In order. that all of the sandlinzthe enclosure be thoroughly broken upand made .homoge nous,'*in: my. preferred method two rotatable agitators'8 and-'5 are provided and caused to turninxunison by {means of, thefcogs .6 and-7 andjthe crank 8. "1 A F a i iThe' enclosure lnis horizontally disposed upon-the floor-.110 within a frame 11, preferably madeuof iron and provided vwithfscrewthreadedfopenings 13 through which a screw 14, having corresponding-threads, is inserted andfrotatedbyzthe detachable wheel 15. and handle 16.

1 1A shoe 17 is placed inposition on the-cover 1', utilizing the same, last-18. around which the shoe was built,.so that it is not necessary to have a special last for use in clam'pingthe sole inrplace; r

. Identicalclamping pieces lQ are provided, a

the main body portions 5200f which areadapt+ ed to be disposed in a horizontal position, fromwh'ich the minorf'p'ortions 21 depend at approximately a right angle, and are provided at their lower ends with a suitable cushion 22, Which may be made of felt or t other suitable material that will not mar the finish of the leather on the toe of the shoe I when placed in the position shown in Fig. 1.

The frame 11 when viewed from the end is substantially the shape of an inverted V, the

7 side members 11 converging to a point to support the crossbea'm 23. The clamping members 19-are provided 'with a plurality of shallow openings 24 which are adapted to I justment of the screw member 14: to difierent receive the upper end of the threaded bolt 25 and adjustable by means of the nut '26-to different sizes of shoes. Also, on the upper or reverse side of the clamping'members 19' a number of shallow openings 2'] areprovided for engaging the lower end of the screw mem- I ber 14:,the purpose of which is to permit adsizes of shoes. 7 7

It is, therefore, obvious that when pressure a is exerted by the'screw' member 14: on top of P the clamping member 19, when properly ada justed, an even and uniform pressure will .be

exerted on the soles 28 of the shoes, when in j position, and the compactability. and mobil ity-Iof the sand will cause thisipressure to be equally and uniformly distributed throughout the entire area of the sole being cemented 7' tothe shoe. 7 g I V Having fully described my invention, what I claim as new and useful and. desireto prov tect by Letters Patent is y Y A shoe sole cement ng machine of the class described, comprising a frame having substantially V-shaped ends terminating at their lower ends in feet adapted to support said frameupona' work bench, theupper portions of said V-sh'aped ends being rigidly joined together by a tie-beam' disposed horizontally I and provided with screw-threaded openings adapted to receive a screw, a screw fitted with adetachable handwheel adaptedi'to operative ly engage said openings and exert pressure upon a clamp, a clamp having one end turned a i a downwardly atright angles" to its m aj or axis and provided with a cushion adapted to en gage the toe of a shoe and provided at its opposite end'with a plurality of bores adapt ed to receive one end of an adjusting bolt,a

bolt adapted to engage the openings in said clamp at one endfandto engage a like opening ina shoe lastfat the other end, a threaded nut on said bolt adapted to adjust the horizontal position of said clamp, a floor afliXed in said frame, a box filled with a mobile,compactible substan'ceand having abottom, side and end walls and a heavy flexible and resilient top, agitators j'ournalled in saidpbox, and means for rotating said agitators.

In testimony whereof I have hereunto at; my signature this 12th day of August,

' WILLIAM GREEN-7; 

